Question: Why Is My AT&T SIM Card Not Working?

What to do if SIM stops working?

Troubleshooting SIM card problemsTurn off your phone and remove the SIM card.Clean the gold connectors on the SIM with a clean lint-free cloth.Replace the battery and turn your phone on without the SIM.Turn your phone off, replace the SIM and restart the phone..

How do I activate an AT&T SIM card?

New phone or SIM card activationGo to att.com/getstartedbiz.Select Activate your device for AT&T wireless device.Enter the required information.Select Continue.Follow the prompts to complete your activation.

What time does AT&T customer service open?

Friday, 8 a.m. – 7 p.m.AT&T customer service Our tech support is available 24/7 and customer service is available Monday – Friday, 8 a.m. – 7 p.m. and Saturday, 8 a.m. – 5 p.m local time to answer your questions. Give our AT&T experts a call.

What is the AT&T prepaid customer service number?

800.901.9878To get your AT&T PREPAID account number, you’ll need to call us at 800.901. 9878 (611 from your AT&T wireless phone).

Why has my SIM card suddenly stopped working?

Check that the sim card have service activated. Restart your phone. Turn off your phone, remove the sim card from the phone and then place it back, turn your phone back on. If none of these work, go to your carrier and ask for a FREE replacement sim card – they will transfer your service over to the new sim card.

How do I know if my SIM card is deactivated?

put the SIM into one of your phones… if it picks up a signal, then it’s active. if it shows nothing, then it’s been deactivated, or maybe might say “Sim registration failed” or something to that nature. If its more than 120 days after the validity period of your last refill, ur sim will most likely be deactivated.

How do I know if my SIM card is active?

If you do not see any network signal. Then sim card is not active. To cross check, dial a number , then screen will show not registered . Means sim is not active.

How do I activate my SIM card?

Activate your new SIM online. Put your new SIM into your device and switch it on – if you need help, find out how to insert a SIM. Wait for your phone to show it has signal and the Vodafone symbol – this can take up to 24 hours, but it’s usually much quicker.

Why is my AT&T prepaid service not working?

Try these tips to fix problems making and receiving phone calls with AT&T PREPAID℠: Turn your phone off and back on. Make sure you have service in your area. … Activate your AT&T PREPAID account, refill your minutes, or renew expired AT&T PREPAID plans at the AT&T PREPAID Support Center.

What to do if SIM is showing no service?

How To Fix An Android Phone That Says No Service:Restart the Phone. … “APM-cycle” the Phone. … Manually Select a Carrier. … Check the SIM Card. … Dial Service Mode. … Check Sideloaded APKs and Custom ROMs. … Check for Void or Corrupt ESN. … SIM Card Static Discharge.

Why is my phone telling me no SIM?

Airplane Mode Solution Depending on the Android version you have, you may or may not get a warning message when turning Airplane Mode on. Enable it and leave it on for about thirty seconds or so. When you turn it off, your Android device will start looking for a network, and hopefully the SIM card error will be fixed.

What does it mean when your SIM card doesn’t work?

If you see a message like “SIM error,” “Insert SIM,” SIM not ready” or something similar, try taking the SIM out then put it back in and power up your phone. … In most cases, the phone has just lost its connection with the SIM (maybe because the phone was dropped) and reinserting the SIM will solve the problem.

Why does my phone keep saying no SIM card detected?

Most of the time, rebooting or power cycling your phone can fix SIM card not detected issue. When you reboot your android phone, it will relaunch the OS as well as the programs stored in your device. If your phone’s software isn’t detecting your SIM, this is one of the quickest fixes to use.

How can I call AT&T customer service in USA?

Want to call us?Wireless Home Phone. 800.331.0500. Every day, 8 a.m. – 9 p.m. local time.AT&T PREPAID Wireless Home Phone. 866.975.0050. Every day, 8 a.m. – 3 a.m. ET.Wireless Internet. 800.331.0500. Every day, 8 a.m. – 9 p.m. local time.

Can you just switch SIM cards on AT&T phones?

If you have two AT&T phones, or two T-Mobile phones, you can transfer wireless service between them by moving the SIM card from one device to the other. You don’t have to take your phone to a retail store, or otherwise get any special permission to switch.

What number do I call to activate my AT&T phone?

866.895.1099To activate a new line of service or a replacement device, please go to the AT&T Activation site or call 866.895. 1099.

Why does my AT&T phone say no SIM card?

If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps. Make sure that you have an active plan with your wireless carrier. … Remove your SIM card from the SIM card tray and then put the SIM card back. Make sure that the SIM tray closes completely and isn’t loose.